Summary

The first order blazed grating spectrum is located on the right side of the star. The processed spectrum band is below the blazed grating spectrum. Spectrums of Eta Ursa Minoris and four bright stars from top to bottom in the above image:

• BD+76 601, SAO 8489, spectral type: K2 D ~
• BD+76 598, SAO 8480, spectral type: F8 D ~
• Eta Ursa Minoris, LTT 14869 -- High proper-motion Star, SAO 8470, HD 148048, spectral type: F5V D ~
• BD+76 597, SAO 8472
• BD+75 591, SAO 8482, spectral type: K0 D ~
• Image File: Eda Ursa Minoris -001100s.fit
• Exposure Time: 100 seconds
• Focus was in the H-alpha part of the spectrum
• Spectrum calibration using four Vega spectrums
• Spectroscopy Equipment

Star Catalogs

• Smithsonian Astrophysical Observatory Star Catalog: SAO
• Henry Draper Catalogue: HD
• Bonner Durchmusterung Catalogue: BD

Spectroscopy Team

The spectrum image was taken by the below spectroscopy team.

• David Haworth, Amateur Astronomer
• Kevin Carr, Professor of Science Education, Pacific University College of Education
• Anders Benson, Pacific University
• Doug Neill, Pacific University
• Ryan Gasik, St. Mary's High School

BD+76 601 Spectrum Chart

• Spectral type: K2 D ~
• ImageJ Macro File: SAO_8489_BD+76_601_V3.7.txt
• Macro log file: SAO_8489_BD+76_601_20101223_1545Log.txt
• Spectrum file: SAO_8489_BD+76_601_20101223_1545DataCalTable.txt

BD+76 598 Spectrum Chart

• Spectral type: F8 D ~
• Lowest spectrum signal to noise ratio.
• ImageJ Macro File: SAO_8480_BD+76_598_V3.7.txt
• Macro log file: SAO_8480_BD+76_598_20101223_1708Log.txt
• Spectrum file: SAO_8480_BD+76_598_20101223_1708DataCalTable.txt

Eta Ursa Minoris Spectrum Chart

• Spectral type: F5V D ~
• Highest spectrum signal to noise ratio.
• ImageJ Macro File: EtaUrsaMinoris001100s_V3.7.txt
• Macro log file: EtaUrsaMinoris-001100s_20101223_1529Log.txt
• Spectrum file: EtaUrsaMinoris-001100s_20101223_1529DataCalTable.txt

BD+76 597 Spectrum Chart

• Spectral type: none listed at SIMBAD
• ImageJ Macro File: SAO_8472_BD+76_97_V3.7.txt
• Macro log file: SAO_8472_BD+76_97 _20101223_1658Log.txt
• Spectrum file: SAO_8472_BD+76_97 _20101223_1658DataCalTable.txt

BD+75 591 Spectrum Chart

• Spectral type: K0 D ~
• ImageJ Macro File: SAO_8482_BD+75_591_V3.7.txt
• Macro log file: SAO_8482_BD+75_591_20101223_1636Log.txt
• Spectrum file: SAO_8482_BD+75_591_20101223_1636DataCalTable.txt